Hepatitis B Virus Immunopathogenesis

Jun 27, 2017 by in GASTROENTEROLOGY Comments Off on Hepatitis B Virus Immunopathogenesis

Fig. 4.1 Hepatic effector CD8+ T cell accumulation requires platelets that have adhered to liver sinusoids. Confocal micrographs of the liver of a HBV replication-competent transgenic mouse that was injected…

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Role of the Intestinal Immune System in Health

Jun 27, 2017 by in GASTROENTEROLOGY Comments Off on Role of the Intestinal Immune System in Health

Fig. 2.1 Two-layers of anti-inflammatory mucosal immune defense preserving the integrity of the intestinal epithelial barrier. Depiction of the homeostatic mechanisms: (1) Immune exclusion to control epithelial colonization of microorganisms…

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Cutaneous and Oral Manifestations of Inflammatory Bowel Disease

Jun 27, 2017 by in GASTROENTEROLOGY Comments Off on Cutaneous and Oral Manifestations of Inflammatory Bowel Disease

• Nail clubbing and palmar erythema • Erythema nodosum • Aphthous ulcers and glossitis • Thrombophlebitis • Perianal fissures, fistulae and abscesses—more severe in Crohn disease than ulcerative colitis • Genital or orofacial Crohn disease • Peri-stomal…

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Magnetic Resonance Enterography

Jun 27, 2017 by in GASTROENTEROLOGY Comments Off on Magnetic Resonance Enterography

Sequence Plane Number of sections Section thickness (mm) Field of view (mm) Advantages Limitations HASTE/SSFSE Coronal 1 50 512 × 512 Minimal susceptibility artefact Prone to flow artefacts SSFP (True-FISP/FIESTA)…

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Pathology of Inflammatory Bowel Disease

Jun 27, 2017 by in GASTROENTEROLOGY Comments Off on Pathology of Inflammatory Bowel Disease

Fig. 22.1 Architectural distortion is a feature of chronic injury. (a) Normal colonic mucosa displays evenly spaced non-branched crypts that line up along the muscularis mucosa. Lamina propria contains sparse…

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Ultrasound in Inflammatory Bowel Disease

Jun 27, 2017 by in GASTROENTEROLOGY Comments Off on Ultrasound in Inflammatory Bowel Disease

Fig. 20.1 Fig. 20.2 Fig. 20.3 First layer: hyperechoic, interface between the lumen and superficial mucosa. Second layer: hypoechoic, interface between the deep and superficial mucosa. Third layer: hyperechoic, interface…

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Enhanced Endoscopy

Jun 27, 2017 by in GASTROENTEROLOGY Comments Off on Enhanced Endoscopy

Fig. 17.1 Enhanced endoscopic technologies to improve the three essential steps to final diagnosis Recognition of lesions in the gut can be improved using better scopes, which have better imaging…

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